Energy conservation and consumption reduction: In agricultural facilities such as greenhouses and breeding farms, heat exchangers can utilize the energy of exhaust air to pretreat fresh air. For example, in winter, transferring the heat from the exhaust to the incoming cold air can increase the temperature of the fresh air and reduce heating energy consumption; In summer, the cooling capacity of exhaust can be used to cool the fresh air and reduce the cooling load of air conditioning.
Improving the environment: By using heat exchangers for heat exchange, the temperature of the air entering agricultural facilities can be brought closer to the indoor ambient temperature, reducing temperature fluctuations caused by ventilation and providing a more stable and suitable environment for crop growth or animal husbandry. At the same time, some heat exchangers can achieve complete isolation between fresh air and exhaust air, avoid cross contamination, and ensure the cleanliness of fresh air, which is particularly important for agricultural production with high environmental requirements such as aseptic cultivation and SPF level animal breeding.
Common types of heat exchangers in agricultural ventilation
Plate heat exchanger: Its advantages are compact structure, high heat transfer efficiency, small footprint, and easy disassembly, cleaning, and maintenance. A ventilation system suitable for various agricultural facilities such as greenhouses and breeding farms, which can achieve efficient sensible heat exchange.
Heat pipe heat exchanger: With the heat pipe as the core heat exchange element, it utilizes the phase change heat transfer of the working fluid inside the pipe to achieve heat transfer. Heat pipe heat exchangers have the advantages of high heat transfer efficiency, good isothermal properties, and the ability to achieve long-distance heat transfer. In the agricultural field, especially in places with strict requirements for environmental temperature and humidity control, such as animal rooms and laboratories, heat pipe heat exchangers can effectively recover waste heat while avoiding cross contamination and adapting to a wide temperature range environment.
Shell and tube heat exchanger: composed of shell, tube bundle, tube plate and other components, the fluid flows in the tube and shell sides for heat exchange. The shell and tube heat exchanger has a sturdy structure and can withstand high pressure and temperature, making it suitable for large-scale agricultural facilities that require high stability and reliability of ventilation systems, such as large greenhouse clusters or large-scale breeding farms. By installing fins on the tube, its heat transfer efficiency can be further improved and its applicability in agricultural ventilation can be enhanced.